lib/ex_captcha.ex
defmodule ExCaptcha do
@moduledoc """
"""
def get do
case System.cmd(Application.app_dir(:ex_captcha, "priv/captcha"), []) do
{data, 0} ->
<<text::bytes-size(5), img::binary>> = data
{:ok, text, img}
_other ->
:error
end
end
end